Abstract: To effectively utilize mineral resources,the paper carried out ore property analysis and experimental study on mineral processing of a gold ore from Kazakhstan,and designed reasonable mineral processing flowsheet in which different ores from 3 mining districts are treated separately.The general design includes two-stage one closed-circuit crushing,tailings pretreatment by jigging,one-stage grinding before Nelson recovery of gold,two-stage grinding before acquisition of gold,copper and lead concentrates by flotation.The design takes into account the flexibility and reasonability of the flowsheet,providing technical support for mineral processing design and engineering construction.